User's Manual

12
. Troubleshooting
This chapter contains the following sections:
• Active alarm, page 12-2
What to do when an active alarm is generated
• Modem debug tools, page 12-4
Fault tracing tools for troubleshooting the OMT modem and the
repeater modem.
• R2R, communication problem, page 12-5
Verification of the link communication speed.
• R2R, advanced node configuration, page 12-6
Fault tracing tool for advanced troubleshooting.
Important
Before opening the repeater for service or repair, read carefully the entire
Chapter 1, Safety, and Outdoor Installation and Service Limitations in
Chapter 3.
Authorized personnel only are allowed to dismantle any part of the
repeater at the site.
To open the repeater, use a 5mm Allen key (6mm for older repeaters).
Power Failure in General
As the entire parameter setting and channel information is stored in an
EEPROM in the repeater, all parameter and channel information remains
intact after a power failure or turn off.
ALLGON System AB AR Repeaters & OMT32 Troubleshooting
User’s Manual VD202 90/EN Rev. 1A 1999-07 12 - 1